Grapevine named ‘BIG PEARL’

ABSTRACT

This invention relates to a new and distinct variety of grapevine named ‘BIG PEARL’. The new early ripening, very fertile grapevine variety is particularly characterized by an attractive berry color, a very uniform bunch and a firm berry with tender crunchy skin.

Botanical name of the genus and species of the plant claimed: Vitis vinifera L.

Variety denomination: ‘BIG PEARL’.

PRIORITY CLAIM

This application claims priority under 35 U.S.C. §119(f) of the Israeli Plant Breeders' Rights Application No. 4233 filed Jan. 4, 2010.

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct grapevine variety, botanically known as Vitis vinifera L., and hereinafter referred to by its variety denomination ‘BIG PEARL’.

The new grapevine ‘BIG PEARL’ is a product of a controlled breeding program conducted by the inventors, Avichai Perl, Nachman Sahar, Oded Degani, Tatiana Okun, Arie Sarfian, Hanan Bazak, Refael Eliassi and Ahuva Daos at The Volcani Center, located in Bet Dagan, Israel. The objective of the breeding program was to develop a new early ripening, very fertile grapevine variety particularly characterized by attractive berries with yellowish green color which are uniform in size and shape and are firm with tender crunchy skin.

The new grapevine ‘BIG PEARL’ originated from a cross made by the inventors in 2004 at The Volcani Center. The female or seed parent is the grapevine Vitis vinifera L indicated as ‘ARO 2117’ (unpatented), in the inventors' collection located in Bet Dagan, Israel, and the male or pollen parent is the grapevine Vitis vinifera L. indicated as ‘ARO 1717’ (unpatented), in the inventors' collection.

The new grapevine ‘BIG PEARL’ was observed and selected by the inventors within the progeny of the stated cross in a controlled environment in 2007 at The Volcani Center.

Asexual propagation of the new grapevine variety by bud grafting was first performed in January 2008 at The Volcani Center, and has demonstrated that the combination of characteristics as herein disclosed for the new variety is firmly fixed and retained through successive generations of asexual propagation. The new cultivar propagates true-to-type.

SUMMARY OF THE INVENTION

‘BIG PEARL’ can be grown in various climates and growing conditions. The variety produces and maintains a strong vigorous plant and consistent fruit production from end June through end July in Bet Dagan, Israel.

The following traits have been repeatedly observed and are determined to be characteristics of ‘BIG PEARL’, which in combination distinguish this grapevine as a new, unique and distinct variety.

-   -   1. Very fertile;     -   2. Early ripening;     -   3. Firm berry with tender crunchy skin;     -   4. Attractive yellow green berry color; and     -   5. Berries which are uniform in size and shape.

Plants of the new grapevine ‘BIG PEARL’ differ from plants of the parents, Vitis vinifera L. ‘ARO 2117’ (unpatented) and Vitis vinifera L. ‘ARO 1717’ (unpatented), in the following characteristics described in Table 1.

TABLE 1 Comparison with parent varieties. Female Parent Male Parent New Variety ‘ARO 2117’ ‘ARO 1717’ Characteristic ‘BIG PEARL’ (unpatented) (unpatented) Berry shape broad elliptic rounded elongated Berry color yellowish yellow green yellow green of skin green Berry thickness thick very thick medium of skin Seeds absent absent absent

Of the many commercial varieties known to the present inventors, the most similar to the new grapevine ‘BIG PEARL’ are Vitis vinifera L. ‘SUGRAONE’ (U.S. Plant Pat. No. 3,106) and Vitis vinifera L. ‘PRIME’ (registered for Israeli Plant Breeders' Rights No. 1467), which differ from the new grapevine ‘BIG PEARL’ in the characteristics described in Table 2:

TABLE 2 Comparison with similar varieties. Comparison Comparison Variety Variety New Variety ‘SUGRAONE’ ‘PRIME’ Characteristic ‘BIG PEARL’ (patented) (registered) Berry shape broad elliptic obtuse ovate oblong Berry color of yellowish yellow green yellow green skin green Berry thickness thick medium medium of skin Seeds absent absent absent

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying photographs illustrate the overall appearance of the new grapevine ‘BIG PEARL’ showing the colors as true as is reasonably possible with colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed morphological description, which accurately describe the color of ‘BIG PEARL’.

FIG. 1 shows a typical bunch of ‘BIG PEARL’ on the plant.

FIG. 2 shows a typical mature leaf of ‘BIG PEARL’.

FIG. 3 shows a typical inflorescence of ‘BIG PEARL’.

FIG. 4 shows a typical growth tip of ‘BIG PEARL’.

FIG. 5 shows a typical berry of ‘BIG PEARL’.

DETAILED MORPHOLOGICAL DESCRIPTION

The new Vitis vinifera L. ‘BIG PEARL’ has not been observed under all possible environmental conditions. The phenotypical descriptions and color designations stated for the new variety may vary, depending on variations in environmental factors, including weather (temperature, humidity and light intensity), day length, soil type, location and cultural conditions, without any change in the genotype of the grapevine.

The following description of ‘BIG PEARL’ unless otherwise noted, is based on observations and measurements taken during 2010 and 2011 at The Volcani Center, on plants grown in the vineyard located in Bet Dagan, Israel under conditions which closely approximate those generally used in commercial practice. The described plants were grafted on ‘Richter110’ (unpatented) and planted at a distance of 1.5 m in sandy red loam soil at an elevation of about 30 meters above sea level with drip-irrigation up to 40 m³ per hectare in the peak season in the summer and Shefer 737+micro-elements 1.5 ltr. fertilizers in each 5 m³ of water. Average annual rainfall is about 550 mm, with an average of 350 mm rainfall in winter (December through February). Mean diurnal minimum temperature in January is 7.2° C., and mean diurnal maximum temperature in July is 30.8° C.

Unless otherwise stated, the detailed morphological description includes observations, measurements and values based on three-year-old ‘BIG PEARL’ plants grown in the vineyard at The Volcani Center, located in Bet Dagan, Israel from 2010 to 2011. Quantified measurements are expressed as an average of measurements taken from a number of plants of ‘BIG PEARL’. The measurements of any individual plant, or any group of plants, of the new variety may vary from the stated average.

Color references are made to The Royal Horticultural Society Colour Chart (R.H.S.), 1986 edition, except where general colors of ordinary significance are used. Color values were taken under daylight conditions in full sunlight in Bet Dagan, Israel.

All of the plants of ‘BIG PEARL’, insofar as they have been observed, have been consistent in all the characteristics described below.

-   Classification:     -   -   Botanical.—Vitis vinifera L. -   Parentage:     -   -   Female or seed parent.—Vitis vinifera L. ‘ARO 2117’             (unpatented).         -   Male or pollen parent.—Vitis vinifera L. ‘ARO 1717’             (unpatented). -   Propagation: Grafting onto ‘Richter110’ (unpatented), Interspecific     Cross, V. berlandieri Planch×V. rupestris Scheele. -   Growing conditions:     -   -   Light intensities.—Full sunlight.         -   Temperature.—Bet Dagan — 30 meters above sea level.

January February March April Mean maximum air 17.8 18.1 20.1 24.5 temperature (° C.) Mean minimum air 7.2 7.1 8.8 11.5 temperature (° C.) Mean rainfall (mm) 140.5 96.9 66.1 17.5 May June July August Mean maximum air 27 29.2 30.8 31.2 temperature (° C.) Mean minimum air 14.6 17.9 20.6 21.2 temperature (° C.) Mean rainfall (mm) 2.2 — — — September October November December Mean maximum air 30.4 28.3 24.1 19.7 temperature (° C.) Mean minimum air 19.4 16 11.8 8.6 temperature (° C.) Mean rainfall (mm) 0.4 20.4 76.2 130.3

-   -   -   Fertilization.—A balanced fertilizer with level of Shefer             737+microelements 1.5 ltr. in each 5 m³ of water.         -   Growth regulators.—None applied.         -   Pruning.—As in commercial practice.         -   Training.—Y trailing cordon.

-   Table of characteristics:     -   -   Plant.—Time of vegetative bud burst: beginning of March.         -   Young shoot.—Openness of tip: slightly open. Density of             prostrate hairs on tip: very dense. Anthocyanin coloration             of prostrate hairs on tip: weak. Green color: green RHS             144 A. Green color of upper side of undeveloped leaf blade:             medium green RHS 144 A with over color medium red brown RHS             166B. Green color of lower side of undeveloped leaf blade:             light green RHS 144 B with over color medium red brown RHS             166B. Anthocyanin coloration: strong.         -   Young leaf.—Density of hairs between main veins on lower             side of blade: dense. Glossiness of upper side: very strong.             Glossiness of lower side: medium.         -   Shoot.—Length of internode: 8-10 cm. Thickness of internode:             5-8 mm. Color of dorsal side of internode: green RHS 144 B.             Anthocyanin coloration of dorsal side of internode: weak RHS             174 A. Distribution of anthocyanin coloration of dorsal side             of internode: blushed. Color of ventral side of internode:             green RHS 144 B. Anthocyanin coloration of ventral side of             internode: absent. Distribution of anthocyanin coloration of             ventral side of internode: not relevant. Density of erect             hairs on internodes: glabrous. Height of node: about 2 cm.             Swelling at node: about 1 mm. Diameter of node: 10-13 mm.             Color of dorsal side of node: green RHS 144 B. Anthocyanin             coloration of dorsal side of node: weak RHS 174 A.             Distribution of anthocyanin coloration of dorsal side of             node: blushed. Color of ventral side of node: green RHS             144 B. Anthocyanin coloration of ventral side of node:             absent. Distribution of anthocyanin coloration of ventral             side of node: not relevant. Pubescence of node: absent.             Length of tendril: 20-30 cm. Diameter of tendril at base:             about 2 mm. Diameter of tendril at tip: about 1 mm.             Pubescence of tendril: absent. Number of bifurcations per             tendril: 4-6. Color of tendril: light yellow green RHS             145 B. Anthocyanin coloration of tendril: weak, at lower             part, RHS 174 A, blushed on sunny side. Number of             consecutive tendrils: more then 3.         -   Inflorescence.—Length: 16-20 cm. Maximum diameter: 6-8 cm.             No. of side branches: 7-12. Attitude of side branches: semi             upright. Length of longest side branch: 4-5 cm. Thickness of             main axis: 3-4 mm. Green color of main axis: light yellow             green RHS 146 D. Anthocyanin coloration of main axis: weak             to medium. Pubescence of main axis: very weak.         -   Flower.—Sexual organs: fully developed stamen and fully             developed gynoecium.         -   Pedicel.—Length: 4-5 mm. Thickness: less than 1 mm. Green             color: light yellow green RHS 146 D. Pubescence: absent.         -   Stamen.—Number: five. Length of filament: 2-3 mm. Thickness             of filament: minuscule. Pubescence of filament: absent.             Surface: smooth. Color: light green RHS 145 C.         -   Anther.—Shape: transverse elliptic. Length: minuscule.             Color: light green RHS 145 C.         -   Pollen.—Color: yellow RHS 150 B.         -   Ovary.—Shape: elliptic. Color: green RHS 144 A. Length:             1-2 mm. Diameter: about 1 mm. Surface: smooth.         -   Style.—Length: minuscule.         -   Stigma.—Size: minuscule. Color: yellow RHS 150 B.         -   Mature leaf.—Blade length: 13-18 cm. Blade width: 15-19 cm.             Shape of blade: pentagonal. Green color of upper side: dark             green RHS 137 B. Green color of lower side: yellow green             between RHS 146 A and 146 B. Glossiness of upper side:             absent. Glossiness of lower side: absent. Profile in cross             section: flat. Blistering of upper side: weak. Number of             lobes: five. Central lobe length: about 8 cm. Central lobe             width: 8-10 cm. Upper, side lobe length: 7-8 cm. Upper, side             lobe width: 5-7 cm. Pubescence of veins on upper side:             medium. Pubescence of veins on lower side: Strong. Green             color of veins on upper side: yellow green RHS 144 D. Green             color of veins on lower side: light yellow green RHS 145 C.             Anthocyanin coloration of veins on upper side: absent.             Anthocyanin coloration of veins on lower side: absent. Depth             of upper lateral sinus: deep. Arrangement of lobes of upper             leaf sinus: slightly overlapping. Arrangement of lobes of             petiole sinus: very open. Petiole sinus limited by veins:             absent. Length of distal tooth: 9-12 mm. Width of distal             tooth: 11-16 mm. Ratio length/width of distal tooth: small.             Shape of tooth: straight on both sides. Anthocyanin             coloration of main veins on upper side of blade: absent.             Density of hairs between veins on upper side of blade:             medium. Density of hairs between veins on lower side of             blade: strong. Length of petiole compared to main vein:             shorter. Length of petiole: 8-10 cm. Petiole thickness: 3-5             mm.         -   Petiole.—Green color of upper side: green yellow RHS 144 D.             Anthocyanin coloration of upper side: red RHS 59 B. Green             color of lower side: not visible. Anthocyanin coloration of             lower side: Red RHS 59 B. Pubescence: strong.         -   Fruit.—Time of beginning of berry ripening: N/R.         -   Bunch.—Size (peduncle excluded): N/R. Length (peduncle             included): 17-27 cm. Diameter: 9-12 cm. Weight: 270-310 gr.             General shape: narrow triangular. Peduncle length: 3-6 cm.             Peduncle thickness: about 5 mm. Peduncle color: light yellow             green RHS 144 C. Peduncle lignification: absent. Density:             medium.         -   Pedicel.—Length: 7-11 mm. Thickness: about 1 mm. Color:             light yellow green RHS 144 C.         -   Berry.—Detachment: difficult. Length: about 30 mm. Maximum             diameter: about 21 mm. Average weight: 7.2 gr. Shape in             profile: broad elliptic. Shape in cross section: rounded.             Depression at distal end: present Color of skin (without             bloom): yellowish green between RHS 145 B and 145 C. Amount             of bloom: none. Surface: smooth, slightly bumpy. Thickness             of skin: thick. Adherence of skin to flesh: strong. Flesh             color: light Yellowish green RHS 145 C. Flesh anthocyanin             coloration: absent. Firmness of flesh: firm. Juiciness of             flesh: medium. Particular flavor: absent. Formation of             seeds: absent.         -   Woody shoot.—Length of node: variable. Color (without             bloom): brown RHS 177 B. Surface: smooth. Shape in cross             section: ribbed. Diameter: about 9 mm. Lenticels: not             visible.

-   Usage: Table grape.

-   Disease\pest resistance: No atypical resistance has been noted. 

1. A new and distinct grapevine variety, referred to as ‘BIG PEARL’, as herein described and illustrated by the characteristics set forth above. 